SILICON LABS EFR32MR21A020F512IM32-C Wireless SOC, ARM Cortex-M33F, 80MHZ, -40°C to 125°C, QFN-EP-32

EFR32MR21A020F512IM32-C is a wireless RCP (radio co-processor) device. It has been optimized for gateways, hubs, and access points. Based on the MG21 family, the MR21 runs the PHY/MAC for 802.15.4 and upto the HCI interface for Bluetooth low energy. The single-die solution combines an 80 MHz ARM Cortex-M33 with a high-performance 2.4GHz radio to provide an industry-leading, energy-efficient wireless SoC for IoT connected applications. For products that already have a separate host MCU or MPU, the RCP device enables lower hardware cost by reducing the requirements of the wireless IC and allowing the wireless protocol and application to run on the existing host MCU/MPU. The MR21 device includes 512Flash, 64RAM and is available in a QFN32 package. With +20dBm maximum power output and excellent receive sensitivity the device provides a robust RF link for reliable communications. EFR32MR21 applications include gateways, border routers.

• MCU core is ARM Cortex-M33
• 64Kb RAM, 20 GPIO
• Bluetooth low energy capable, 80MHz core frequency
• Zigbee capable, 2.4GHz capable, OpenThread RCP, Matter Thread RCP
• 512KB flash, 20W maximum output power
• Operating temperature range from -40°C to 125°C, QFN32 package
• 12-channel peripheral reflex system enabling autonomous interaction of MCU peripherals
• Integrated PA with up to 20 dBm (2.4GHz) TX power
• Robust peripheral set
• Wide operating range from 1.71 to 3.8V (single power supply)